Improvement in windmills



G.' H. WALLAcE.

WIND-MILL. N@.1s1,z93.

Patented Aug. 22,1876

N. PETERS, PMQTO- GR RINGTON` D C,

UNITED STATES PATENT OFFICE.

GEORGE H. ,WALLAOE, OF NEWTON, IOWA.

l IMPROVEMENT IN WINDMILLS.

Specification forming part of Letters Patent No. 18 1,293, dated August22, 1876; application filed May 24, 1876.

To all whom it may concern:

Be it known that. I, GEORGE H. WAL- LACE, of Newton, in the county ofJasper and State ofIowa, have invented certain new and usefulImprovements in Windmills; and I do hereby declare that the following isa full, clear,and exact description thereof', which will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to letters ofreference marked thereon, which form a part of this specication.

My invention relates to improvements, in windmills, of that class inwhich the windwheely rotates on a vertical axis, and is surrounded by aseries of shutters, which may -be closed to shut off the wind entirelyfrom the wheel, and opened to act as directrices for the wind to thewheel, and the invention consists in certain new and improved devicesand combinations of devices, whereby the operation of the wind-wheel isrendered more effective and easy to regulate, all as hereinafter morefully set forth.

In the accompanying drawing, Figure 1 is a side elevation of a windmillembodying my invention. Fig. 2 is a sectional view in the line w of Fig.l. Fig. 3 is a sectional view in the line y y in Fig. l, looking upward;and Fig. 4is a section through one of the shutters, and its hinge.

Referring to the parts by letters, letters A represent the frame-work ofthe structure on which the motor rests, consisting of posts A andtransverse frame-pieces A A A. B is the wind-wheel, mountedon a centralvertical, B', having suitable bearings in the bars Al A", and carryingsails b, as shown plainly at Fig. 2. C O are annular plates, secured tothe frame-piecesl A A", the one, O, above, and the other, O', belowthewheel B. D represents the shutters hinged at d on their inner edges tothe plates O O', the lower hinge formed, as shown at Fig. 4, of ajournal, d', which enters the lower end of the shutter, a collar, d, onwhich the shutter is supported, and an end, d, which enters the plate O.The shutters D are hung so that their inner edges come very near theperiphery of the wheel B, and, being hinged very near their edges,changing their angle does not affect their distance from said wheel;hence, opening them at a greater or less distance does not increase theannular space-between them and the wheel, and thus open a passage forthe air inoperative upon, the wheel. E is a circular plate, journaled onthe shaft B above a collar, F,

which is secured upon the shaft by a set-screw,

f. Letters e are arms or rods, pivoted at one end in the plate E, andtheir other ends pivoted one to each lower end of the shutters D, sothat rotation of the plate E will o-penfand close the shutters. G is anarm attached to the plate E, and extending outward beyond thesupporting-frame A. EI is a pulley or wheel on the shaft B', on theperiphery of which is a serpentine cam-shaped projection, h. I is an armpivoted or hinged at one end to the side of the frame A, and its otherend formed into a T-shaped head, t', carrying pulleys s s, between whichthe cam h operates, so that a rotary motion of the shaft B will impartan oscillating movement to the arm I, and through it transmit areciprocating mo-A tion to a pump-rod, or any desired device connectedwith it.

By removing the cam h a belt may be used to transmit motion from thepulley H. The rod or arm G may be used to turn the plate E to entirelyclose the shutters, or to set and fix them at any desired degree ofopening.

Having thus described myinvention, what I claim as new, anddesire tosecure by Letters Patent, is

l. rlhe hinges for the shutters D, constructed as described, with ajournal, d, collars d, and end df, for operatibn with said shutters Dand plate E, substantially as and for the purpose specied 2. Thecam-wheel H, arranged to operate y with the wind-wheel B and arm I,carrying studs s, with or without pulleys, substantially as and for thepurpose specified.

In testimony that I claim the foregoing asl my own I affix my signaturein presence of Witnesses TEos. A. MOKEE, H. E. HUNTER.

